M1-5000--Music
M1-1.A15----Music printed or copied in manuscript in the United States or the colonies before 1860
M1.A5-3.3----Collections
M1.A5-Z----Miscellaneous
M2-2.3----Musical sources
M3-3.3----Collected works of individual composers
M5-1480----Instrumental music
M5----Collections
M6-175.5----One solo instrument
M176----Motion picture music
M176.5----Radio and television music
M177-990----Two or more solo instruments
M1000-1075----Orchestra
M1100-1160----String orchestra
M1200-1270----Band
M1350-1366----Other ensembles
M1375-1420----Instrumental music for children
M1470-1480----Aleatory music. Electronic music. Mixed media
M1490----Music printed or copied in manuscript before 1700
M1495-2199----Vocal music
M1495----Collections
M1497-1998----Secular vocal music
M1497------Collections
M1500-1527.8------Dramatic music
M1528-1529.5------Two or more solo voices
M1530-1609------Choruses
M1611-1624.8------One solo voice
M1625-1626------Recitations with music
M1627-1853------Folk, national and ethnic music
M1900-1985------Songs of specific groups or on specific topics
M1990-1998------Secular vocal music for children
M1999-2199----Sacred vocal music
M1999------Collections
M2000-2007------Dramatic music
M2010-2017.6------Choral services, etc.
M2018-2019.5------Two or more solo voices
M2020-2101.5------Choruses
M2102-2114.8------One solo voice
M2115-2146------Hymnals. Hymn collections
M2147-2188------Liturgy and ritual
M2190-2196------Sacred vocal music for children
M2198-2199------Popular religious and devotional music
M5000----Unidentified compositions
ML1-3930--Literature on music
ML1-5----Periodicals. Serials
ML12-21----Directories. Almanacs
ML25-28----Societies and other organizations
ML29-31----Special collections
ML32-33----Institutions
ML35-38----Festivals. Congresses
ML40-44----Programs
ML45----Circulars and advertisements
ML46----Scrapbooks
ML47-54.8----Librettos. Texts. Scenarios
ML55-89----Aspects of the field of music as a whole
ML93-96.5----Manuscript studies and manuscripts
ML100-109----Dictionaries. Encyclopedias
ML110-111.5----Music librarianship
ML112-112.5----Music printing and publishing
ML112.8-158.8----Bibliography
ML159-3785----History and criticism
ML159-161----General works
ML162-197----By period
ML198-360.6----By region or country
ML385-429----Biography
ML430-458----Composition and performance
ML459-1380----Instruments and instrumental music
ML1400-3275----Vocal music
ML3300-3351----Program music
ML3400-3465----Dance music
ML3469-3541----Popular music
ML3544-3776----Folk, national, and ethnic music
ML3780----Music on particular topics
ML3785----Musical journalism
ML3790-3792----Music trade
ML3795----Music as a profession. Vocational guidance
ML3797-3799.5----Musical research
ML3800-3923----Philosophical and societal aspects of music. Physics and --acoustics of music. Physiological aspects of music
ML3800----General works
ML3805-3817----Physics and acoustics
ML3820----Physiological aspects of music
ML3830-3840----Psychology
ML3845-3877----Aesthetics
ML3880-3915----Criticism
ML3916-3918----Social and political aspects of music
ML3919-3920----Moral influence of music. Therapeutic use of music
ML3921-3921.8----Religious aspects of music
ML3922----Music in the workplace
ML3928-3930----Literature for children
MT1-960--Instruction and study
MT1----General works
M2.5----Music study abroad
MT3-5----History
MT5.5-7----Music theory
MT9-15----Printed pedagogical aids
MT9----Examinations, exercises, etc.
MT10----Teachers= and supervisors= manuals, etc.
MT15----Charts, diagrams, etc.
MT17----Music in special education
MT18----Music in colleges and universities
MT20-34----Systems and methods
MT35-39----Notation
MT40-67----Composition. Elements and techniques of music
MT68----Improvisation. Accompaniment. Transposition
MT70-74----Instrumentation and orchestration
MT75----Interpretation
MT80----Embellishment
MT82----Memorizing
MT85----Conducting. Score reading and playing
MT87----Community music
MT88----Administration and instruction of vocal groups
MT90-146----Analysis and appreciation of musical works
MT150----Audio-visual aids
MT155----Music theory for children
MT165----Tuning
MT170-810----Instrumental techniques
MT179-258----Keyboard instruments
MT259-338----Stringed instruments. Bowed stringed instruments
MT339-533----Wind instruments
MT539-654----Plucked instruments
MT655-725----Percussion and other instruments
MT728-735----Ensembles
MT737----Motion picture accompanying
MT740-810----Instrumental techniques for children
MT820-915----Singing and vocal technique
MT898-915----Vocal techniques for children
MT918-948----School music
MT920-925----Kindergarten
MT930-948----Elementary schools. Junior high schools. High schools
MT949.5----Whistling
MT950----Music to accompany instruction in ballet, folk dancing, gymnastics, etc.
MT955-956----Musical theater
MT960----Music in the theater